The creaking sound is perfectly normal and is caused by the movement of roof timbers responding to changes in temperature.
Theres a kink in the attic.
It can ofter sound as if the roof is broken in some way or the roof is going to collapse.
If there s a constant clicking air conditioning noise you could have a problem.
If the unit is making a continuous clicking noise but won t turn on it could be an electrical problem.
Heaping insulation over the ducts is fine in dry climates but can cause condensation on the duct insulation jacket in humid climates.
Unwelcome or not it sounds as if there is a wild animal making those scratching sounds in the attic or walls looking for somewhere to rest its head and rear its young.
At night attic can sometime make loud creaking and cracking sounds.
There may be something damaging the blower fan.
Knocking sound in attic if you hear a knocking sound in your attic this is a pretty good indication that an animal of some sort has taken up residence in that space.
Homeowners requiring attic rat removal need to ensure they engage the services of a company that provides thorough attic cleaning and restoration.
There s one caveat to your attic suggestion however.
Art plumbing ac electric has been performing attic rat removal in florida since 1983.
Our pest control professionals will perform attic insulation removal to expose the pests hiding places.
The doe s building america program recommends beds buried encapsulated ducts.
Sometimes you will hear a knocking while other times you may notice a scurrying sound thumping noise or something else.